Hope this is what you are looking for the answer is 2(15-2n)
The slope that passes both points is 0.
C) The +10 is because you already have 10 coins, that will not change. The 6x is because with each passing day, the number of coins increase by 6 (x represents days). The equation then turns into y=6x+10
Hope this helps comment for more questions :)
It’s C
You would use cos for this equation
Cos(45)= x/5
5 x cos(45
And when you put that in the calculator you will get that answer C